<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
<!--  优化点：title， keywords， description-->
    <meta name="description" content="">
    <meta name="keywords" content="">
    <!-- 快捷键：link:favicon 浏览器标题栏小图标-->
    <link rel="shortcut icon" href="../background_img/ico/blue.ico" type="image/x-icon">
    <title></title>
</head>
<body>

</body>
</html>